This is a hard notion: "No one cares what you are going through in your personal life so better hide your pain and focus on work. Sometimes working environment helps to forget life problems at least for a while."

I wish we could be more emotional but you are right the business world is controlled by emotion controlled people.
Not sure if they realy control their emotions or they just don't have any. There are researches showing many CEOs are psychopaths, but I think this is changing and today the managers are more empathic. At least this is what I see.